Deep-well pump.



Patented Nov.15,1`910;

l AI'. .1 lill J. HAHN. DEEP WELL PUMP. APPIIOATION FILED JAN. 3, 1916.

- `UNITED s'rATns .marron l JOHN' EME, 0F ANGELES, CLXFREA.

nnnewnnn Put/rr.

'Speciiication o' Letters Patent.

Patented 3.94?.

Application flied January 3, 1910. Serial No. 536,223.

geles, in the county of Los Angeles and State of California, have invented new and useful Improvements in Deep-Tell Pumps,

of which the following is a specification.

This invention relates to improvements in certain respects, of the deep well pumps invented by me heretofore as exemplified -in United States Letters Patent No. 735,248, patented Aug. 4, 1903, and No. 7 53,828,\pat ented Mar. 1, 1904, and in applications for Letters Patent of the United States, Serial No. 452,131, led Sept. 8, 1908, and Serial' No. 480,787, filed Mar. 1, 1909, in which some of the features shown herein are shown land olaimed,` and for that reason are not claimed in this application.

Objects of this invention are: simplicity Aand cheapness ofconstruetion, and also to make provision for washing the sand out in a convenient manner with small expense of time `and labor. Also 'to provide a iiuid packed plunger and to draw movable portions'of the pump from the pump tubing without' disturbing the tubing.

Further objects are to provide for kee ing the interior of the working barrel free om adhering substances; to provide for forcibly seating the working barrel; and to improve means for frictionally holding the working barrel down.

Other objects are, to make provision for Aholding the plunger barrel straight in the "working barrel; to prevent unnecessary `strain on the cup of the plunger barrel; to

keep the working barrel free from materials that might adhere thereto; and thus to increase the life of the plunger barrel.

Other objects and advantages may'appear from the subj oined detail description.

The accompanying drawings illustrate the invention.

hFigure 1 is a broken mid-section showingA t e wor position. Fig. 2 shows the position of parts when the pumping apparatus is drawn up -to afford' a passage through which sand and heavy oil and other obstructions that might clo the pump tubing may be washed down an out below the standing valve, without withdrawing the pum from the-tubing and without. disturbingt e tubing. `Fig. 3 is an enlarged fragmental section showmg the pumping apparatus and omitted from this view.

position of parts when the pump is in other parts in detail. The reducer which is iixed to the lower end of the ordinary pum tubing and to the Aupper end of the enlarge chamber is displaced from actual position, being lowered .inside the casing in order to bring it into the View. The sucker-rod is The plunger han rel cage and the plunger barrel are shownv 4 is an enlarged fragmental sectional detail showing the lower end of the plunger barrel with a scraper 'foot formed b acollar thereon; and a portion of the wor 'ng barrel and a distensible cup or sleeve arranged to serve as a packing and provided with an annular scraper at the top to scrape the interior of the working barrel. Fig. 5 is a plan detail of the plunger lbarrel guide and working barrel puller. Fig. 6y is a side elevation of the slot-ted resilient section of the pump tubing. A

The well casing 1 may be of the usual form, provided with perforations 2, through which the oil or other liquid enters. The upper sections 3 of the pump tubing may be o the usual form.

Anenlarged intermediate pump tubing section 4 to form an enlarged chamber is by a reducer 5 having an internal shoulder 0 upon which. the upper' section 3 when" screwed home. A- lower reducer 7 is screwed onto the lower end of the enlarged intermediate chamber section 4 and correspond approximately in diameter with the upper section 3 is screwed into the reducer 7. On the lower end ofthe section a resilient slotted frictional guide section 10 to the bottom of which is screwed a colsection or anchor 12 of -the pump tubing Vwhich anchor may# extend down as'usual to any depth desired inside the well-easing.

The lower reducer 7 is provided with a spigot seat 13, the internal diameter of the lower end of which is less than the internal diameter of the uppersection 3. The working barrel 14 is provided with an enlarged in Fig. 3, said head is contracted at its u per end to form a tubular guide 16 furthe p nger barrel and is provided between vsaid tapered sleeve and guidewithit perforated head forming a taperedsleeve 15 toftinl the spigot seat 13. In the form detailednearly at the limit of the down-stroke. c5

connected with the upper pump tubing 3155 a lower section 8 of pump tubing which may 8 is screwed a collar 9 into which is screwed Q5 lar 11 into which is screwed the bottom etweenrthe working barrel 14 and the pluner baurel'to form a liquid packlng between foot-(piece 26 of the plunger barrel.

The plunger barrel shown in Fig. 3 is composed of a number of parts. The upper section .18 of said plunger barrel 1s screwed intothe lower end of a single-piece cage 19 24 between the screw-threaded ends of the nipple to engage the shoulder 17 for the urpose of pulling Athe head of the working ar- 'from its spigot seat 13, and also lto-form a guide for the plunger' barrelinside the working 'barrel to hold the lunger barrel straight. Passages for liquid are provided 4liajtween. the projections 24 so that liquid lwhich flows fthreugh the perforations of the `shoulder 17 may pass to the lower end of the plunger barrel. Said plunger barrel is provided at its lower end with a `foot-piece in the form of a scraper 26 which lits the interior of the `working barrel 14; and the danger barrel is also provided with a cup iai-*ing a distensible sleeve 27 that tsthe bore of the working barrel 14 and that is bermetically fastened to the lowerl portion o1' section 22 ofthe plunger barrel by the foot 26. "llhe'npper lend of the cup is provided with an annular sera er tip 28 of `durable anateail, as 'wood-fi er, metal or hard rubber and the scraper fits the inside ofthe wertung 'barrel to scrape the same. The plunger ibartel is thus formed .with a stiff bottoni und tup and a flexible Adistensible wall therebetween, and the top and wall of the .cup `are spaced apart from'the plunger barretta adm-1t liquid `to distend the wall 27 vagainst the inside of the working I barrel. 'l/Vlivngv cup is distende-d bythe liouid nressnretherein it forms a erfect 1 1 l y 1 packing between Ithe plunger barrel and the Y working barrel.

vto

' 'rterial, as canvas 29 havi The distensible body 27 of the cup may be formed of any suitable strong flexible maan inner rubber or other impermeable facing 30. The ends of said sleeve are seated in grooves 31 and 32 in the foot 26 and in the 'annular scraper lharalder i7 to admit liquid into the space.

he headflb of the working barrel and the cage 37 which is similar in construction to that described in my said application Senal No. 480,787, and into the lower e'nd of which A `is screwed the downward eXtension'38 of the working barrel which holds the standing valve seat 39 in place in the standing valve cage 37 in which the standing Valve 40 is mounted.

The inward extensions 34 of tile resilient slats 3% are spaced apart from the spigot seat 13 a distance somewhat less than 'the 'distance .between the tapered sleeve 15 and the bot-tom of the standing valve .y so that when the working barrel is inserted with its tapered sleeve 15 in the seat 13, the standing valve will have spread apart the slats 33 and the projections 34 will frictionally engage the working barrel or the standing valve,l

vso

as lthe case may be. 'In ,Figli of the drawing the working barrel is shown 'engagedbv the-inward projections 84. rlhe slots' 41 of the resilient connection 10 admit liquid as indicated 'by bent arrowsfrom the interior of the well-casing into the open space 42 around the downward extenswn 38 which forms the conduit to direct the liquid up into the standing valve cage. The weight of the anchor 12 operates to straighten the slats 33. from their outwardly bent position, thereby increasin the grip oflsaid slats upon the .working arrel to `hold the same in place.V

The plunger cage 19 projectsoutward from the upper section 18 of the plunger barrel and t ereby forms a shoulder to engage the contracted portion 1.6 of the head so that when the cage 19 is forced down by the sucker-rod 43, the tapered sleeve 15 maybe driven home in its seat 13.. When thecage is drawn ufor 'the purpose of pullin Ithe yworking arrel, the projections 24 wil en 4age the inside of the head and the plunger arrel .may be operated to jar the'head loose from the s i ot seat and then `to draw the plunger an t e working barrel and their at tached parts vfrom the pump tubing without d1sturb1ng the tubing.

When the pump 1s inworking position@ the liquid in the pump tubing will flow downward through the perforations at 17 into the olpen space between the plunger barrel andA t e workin barrel and thenr/ednto the open space insi e the cup sleeve 2bt and will thereupon distend said sleeve, forcing the same tightly against the inner walls of .the working barrel Boas to prevent any leakage of the liquid yback to the standing valve. y i

At each upward stroke of the plunger barrel the scraper 28 .will scra c the inner walls of the working barrel an any stick substance that may'adhere to the walls wi l thus be directed down into the space inside vll barrel is madeof two sections 44 and 45, the upper section 44 being of less diameter than the lower section 45, which is screwed onto the up er section 44, rleaving a. shoulder 46 at the ottom of the u per section 44 and an enlarged chamber 47 elow said shoulder to accommodate the enlarged foot 48 of the plunger barrel which forms a shoulder to erence to Figspl, 2 and 3. In Fig. 1, the

engage the shoulder 46 in the same manner as the projections24 engage the shoulder 17 1n Fig. 3, so that the plunger barrel maybe employed to jar loose the tapered sleeve 15' of the working barrel head from its spigot 'seat 13.` .i

In Fig. 1, the' working barrel is shown' seated, and 1n Fig. 2 the working barrel is shown pulled out of its seat by engagement with the shoulder 46 of the lplunger barrel foot 48.

1`he operation will be understood by refcage' 19 is shown in position for driving the working barrel into its spigot seat and, into` the resilient slotted frictlonal guide section 10, sothat the working barrel will be`,f,ric tionally held b the guide section and ,the

spigot seat, an will be'hermetically sealed the straight arrow on section 18 of the plun-I 1n the pump tubing by thespigot seat. I In Fig. 2, the lunger barrel and the working ,barrel are s own drawn up from the spigot seat 13. In Fig. 3, the workingbarrel is Ashown fully seated and the plunger and plungerbarrel cage are shown in operation,

I claim:

1. In a pump, a Working barrel having an enlar ed head adapted to guide the plunger barre and forming a tapered sleeve to fit a spigot seat,pump tubing provided with a' spigot seat for said sleeve, a -plunger barrel 1n the working barrel, and a cage on the plunger barrel outside said head-,there being a space provided between the plunger barrel and the working barrel and perforations through the head from such space.

'2. Pump-tubing com osed of a plurality of sections, one of' said) sections connectin two other of said sections and provided with outwardly bowed slats havin inward projections that extend beyond t e line of the lnner wall of the upper section, the weiglit of the lower section tending to straighten the slats to force the inward projections in- Y wardly to form a contraction in the tubing, between the sect-ions.

and a p un r barrelinside the working bar rel, sald p unger barrel being provided in terme'diate its ends with projections forming a guide to engage theinside of the work' ing barrel.' y

4.'.Aip`umfp comprising a working barrel, a..` lunger barrel inside the wo'rkinggbarrel",

' 3. A ump'comprising a working barrel 'inl a istensible cup connected with the plun'er 'i barrel, said plun er barrel being" provi ed with projections orming-`a guide to engalgle t e the inside of the working banie'l to keep.

lungerbarrel straight within the. working j arre In testimonwhereof, I have hereunto set my -hand at JOHN HAH-N.j In presence of J AMEsR. TowNsuND,- L...'Bnu.n RICE.

s'. Angeles, California, this u 27th day of December, 1909. 

